Why will audio and video not sync in rendered video file?
I loaded up your syncTest01002Rev.avi file and playback wasn't in sync. Inspecting the file with ffmpeg gets the following message: "[mpeg4 @ 0x19ecc00] Invalid and inefficient vfw-avi packed B frames detected". Re-encoded to fix the error, when loading into blender, it had an extra frame (680) and worked without issue.